I have delta1010 w/ GSIF drivers. When I launch giga and view the midi mixer and click on the button to assign DSP mixer channels, I only see one input pair. Here is where the bug comes in. If I go into settings and under audio capture specify 24 bit, then when I go back to the mixer, all 16 stereo DSP channels are visible! At this point I can put capture back to 16 and the channels are still available. There are other random things I can do to fix it as well. I think at one point, changing MIDI in from my delta to none fixed it. This is just weird. There is no explanation for this kind of behavior.